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Here are some examples of heat energy. 1  The biggest example of heat energy in our solar system is the sun itself. 2  The sun radiates heat to warm us up one the planet earth. 3  When the burner of a stovetop is very hot, it is a source of heat energy.
1 Original Source of Energy. The Sun provides the energy that is used by the Green Plants. The Sun is the original source of energy in all food chains on the surface of the Earth and in the upper parts of the Oceans.  Primary Producer.